Thanks Dowtish!
Okay. I can try my best, but i think Claude from Fauna Marin, who is very active in Forums will notice this thread to answer with a better knowledge then i can do.
Balling or Balling Light is a system which is close to your american way/2 Part Method but better
Fauna Marin has added his own balanced trace elements to the Balling Method, because most of the theoretical guys think that one problem causing the "old tank syndrom" after years, is that many of us are inserting "regular" trace elements into our tanks which can not be sorted out by the skimmer. You can measure how much CA, ALK and MG your tank consumes but you will not know, how much regular trace elements it will need - someone who can do this would be a magician.
Claude or better "you" add an fix amount of trace elements to the 3 solutions - and as you will only dose those into the tank by the literal needs it will be consumed and not "stored". (Don`t know if this is the correct word. I mean: it will not stay in your tank)
It just works like a charm, is easy to install, easy to manage and delivers stable results for all 3 values.
Fauna Marin has released also new "Color Elements" which are.. stunning. What i really like about them is, that "behind" is a man (Claude) with a undefinable perfect theoretical understanding but with practical test and experience over years also. Everything he is selling is tested in his own tanks for at least two years.
The Color Elements had also a huge impact after 3 Weeks of Dosing in my tank. My corals gained much more and intensive color. And i am still having trouble with my NO3..